Meaning of CDNA LIBRARY

Biology Dictionary
	Definition:		A library composed of complementary copies of cellular messenger RNAs. A collection of all of the mRNA molecules present in a cell or organism, all turned into cDNA molecules with the enzyme reverse transcriptase, then inserted into vectors (other DNA molecules which can continue to replicate after addition of foreign DNA). The library can then be probed for the specific cDNA (and thus mRNA) of interest.
Glossary
	Definition:		A library composed of complementary copies of cellular mRNAs. (See Library) A collection of DNA sequences that code for genes. The sequences are generated in the laboratory from mRNA sequences.